Eclipse Arduino - Binary Not Found

Hi,

I am using my Arduino Uno board through Eclipse. I have followed all of the steps on http://www.baeyens.it/eclipse/Install.html to install the AVR and set the paths, etc. My program builds correctly and appears to upload to the device when I click the 'AVR' button, but when I press Play I get an error message that reads "Launch Failed. Binary Not Found."

Can anyone tell me what I'm doing wrong? I have verified my settings with every configuration tutorial I can find and all appears fine!

Thanks!